Our source: data source
Our domain of interests primarily focus on datasets related to college life. We found three datasets before which included college-tuition dataset, college-basketball dataset and college-majors dataset.
Basically we’re interested in this aspect because they are somehow connnected to our school life. By researching and analyzing those data, it is a great opportunity for us to have a more well-rounded understanding with regard to this.
Finally, by considering the details of three datasets, we choose the college-tuition dataset as our main reasearch emphases. This dataset is both easily understandable and has sufficient data, which makes this dataset more reliable.
Here is the summary information we got from our data:
## $length
## [1] 10
##
## $num_public
## [1] 1584
##
## $num_private
## [1] 1281
##
## $num_for_profit
## [1] 107
##
## $avg_instate_tuition
## [1] 16491.29
##
## $avg_out_of_state_tuition
## [1] 20532.73
##
## $avg_instate_public
## [1] 6037.799
##
## $avg_instate_private
## [1] 29432.44
##
## $avg_outstate_public
## [1] 13615.96
##
## $avg_outstate_private
## [1] 29436.48
##
## $most_expensive_instate
## [1] "Columbia University"
##
## $most_expensive_outstate
## [1] "Columbia University"
Based on our calculation, there are 10 colleges in the dataset. Among them, there are 1584 public schools and 1281 private schools. There are 107 schools run for profits. The average tuition for in-state students is $1.649129410^{4} and for out-state students is $2.053272510^{4}. The average tuition of public colleges for in-state students is 6037.7992424 and those for private colleges is 2.943243610^{4}.
The average tuition of public colleges for out-state students is 1.361595610^{4} and for private schools is 2.943648210^{4}. The university that has the highest in-state tuition is Columbia University and The university that havs the highest out-state tuition is Columbia University.
The purpose of this table is to compare the total cost of students by finding the difference between in-state total cost and out-of-state total cost.
| Name | State | Type | In-state Cost | Out-state Cost | Difference |
|---|---|---|---|---|---|
| University of Michigan | Michigan | Public | 26796 | 60884 | 34088 |
| University of Virginia | Virginia | Public | 29154 | 60055 | 30901 |
| University of California: Davis | California | Public | 30674 | 59669 | 28995 |
| University of California: Berkeley | California | Public | 30344 | 59336 | 28992 |
| University of California: Irvine | California | Public | 30877 | 59869 | 28992 |
| University of California: Los Angeles | California | Public | 29590 | 58582 | 28992 |
| University of California: Riverside | California | Public | 33108 | 62100 | 28992 |
| University of California: San Diego | California | Public | 26561 | 55553 | 28992 |
| University of California: Santa Barbara | California | Public | 29697 | 58689 | 28992 |
| University of Maryland: Baltimore | Maryland | Public | 11033 | 39267 | 28234 |
| University of California: Merced | California | Public | 30081 | 58095 | 28014 |
| University of California: Santa Cruz | California | Public | 30416 | 58430 | 28014 |
| University of Texas at Austin | Texas | Public | 21410 | 48284 | 26874 |
| Virginia Military Institute | Virginia | Public | 28290 | 55134 | 26844 |
| University of Wisconsin-Madison | Wisconsin | Public | 21669 | 47919 | 26250 |
| University of North Carolina at Chapel Hill | North Carolina | Public | 20177 | 46360 | 26183 |
| Texas A&M University | Texas | Public | 21404 | 46878 | 25474 |
| University of Washington | Washington | Public | 24315 | 49696 | 25381 |
| University of Washington Bothell | Washington | Public | 23015 | 48396 | 25381 |
| University of Washington Tacoma | Washington | Public | 22389 | 47770 | 25381 |
The table is sorted by the cost difference, from the highest to lowest, so we can see which college has the highest difference between in-state cost and out-state cost from the table. This table groups the college tuitions by its type, such as ‘Public’, ‘Private’, and ‘For Profit’. So we can see more clearly the differece between each type of college, and this group helps us get information easier from the table based on their types.
This chart shows the relationship between in-state tuition and out-state tuition with regard to colleges that are private, public, or run for profits.
We choose this chart to express this relationship because color points make it clear showing what out-state and in-state are like in different school types. Besides that, the axis data are also helpful showing the tuition.
This chart shows the relationship between in-state tuition and room & boards in different colleges.
We choose this chart in expressing the information because this chart enables us to see clearly the relationship between tuition and rooms. Also, the color depth of each hexagon shows the number of colleges.
This chart shows the relationship between in-state tuition and degree length in three different types of school.
We choose this chart to express information because it divides the graph into three parts. Each part shows a different school type, and in each chart there’s a relationship we can observe through the position and color of each bar.